Vacuum-pump.



No. 734,988. PATENTED JULY '28, 1903'.

' 3. A. STEEB.

VACUUM PUMP.

APPLICATION FILED SEPT. 30, 1902.

80 MODEL. 2 SHETSSHBET 1.

WITNESSES: INVENTOR dz fi fz y 3 7 Amie vars.

No. 734,988. PATBNTED JULY 28,1903. R. A. STEEB.

VACUUM PUMP.

APPLICATION FILED SEPT. 30, 1902.

NO MODEL. 2 SHEETS-SHEBT 2.

IN VE N TOR M04175 x42 WITNESSES.

A TTOHNE YS..

m: mums vz'rzns co. wow-urns" WASHINGYON. n. c.

UNITED STATES I Patented July 28, 1903.

RUDOLPH A. STEEB, OF ROSELLE, NEW JERSEY.

VACUUM-PUMP.

SPECIFICATION forming part of Letters Patent No. 734,988, dated July 28, 1903.

Application filed September 30, 1902. Serial No. 125,370. (No model.)

To all whom it may concern:

Be it known that I, RUDOLPH A. STEEB, a citizen of the United States, and a resident of Roselle, in the county of Union and State of New Jersey, have invented a new and Improved Vacuum-Pump, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved vacuum-pump designed for producing a vacuum in the bulbs of electric lamps and other devices and apparatus in a very simple, quick, and economical manner.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter, and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying; drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in both views.

Figure l is a longitudinal sectional elevation of the improvement; and Fig. 2 is an enlarged longitudinal sectional elevation of the improvement, showing the operating parts in a diiferent position.

The cylinder A of a single-acting pump A is mounted to turn in suitable bearings B, and from the closed end A of the said cylinder A extends outwardly the tubular shank C of a funnel 0, provided at its outlet end with a valve D and adapted to be closed at its inlet end by a suitable cover E, as plainly indicated in the drawings. From the closed end A also leads a pipe F in the opposite direction from the shank G, and this pipe F is provided with a valve F and is adapted to be connected by a coupling G with a tube H, extending integrally from a bulb H or other object in which the vacuum is to be produced, the said bulb H being held in the arms I and I of a holder 1, having a supporting-rod 1 on which the arms I and I are adjustably held by set-screws I.

The rod I of the holder I is fastened by a set-screw I to a shaft J, secured to the closed end of the cylinder A, and the said shaft is journaled in a bearing K and is provided on its outer end with a hand-wheel L, under the control of the operator, for turning the shaft J and with it the cylinder A- of the pump, so

as to move the funnel E from the uppermost position (shown in Fig.1) to the lowermost position (shown in Fig. 2) and for moving the bulb H from the lowermost position (shown in Fig. 1) to the uppermost position. (Shown in Fig. 2.) A locking device N of any approved construction and mounted on the bearing K serves to lock the hand-wheel Lin either of its two positions.

The piston A of the pump A has its pistonrod A connected with a piston O, mounted to reciprocate in a fixed cylinder 0, connected at its closed end by a supply-pipe O with a suitable source of motive-agent supply, such as compressed air, steam, or the like, to force the piston O outward in the direction of the arrow to, to draw the piston A in. a like direction in the cylinder A. A spring P presses on the piston 0, so as to return the latter to its normal position when the motive agent is shut off, and the closed end of the cylinder 0 is connected with the open air to allow the exhausting of the cylinder of the motive agent at the time the valve 0 in the pipe 0 cuts off the motive agent and opens the pipe 0 to the atmosphere- For the purpose mentioned the valve 0 is preferably in the form of a threeway valve of any approved construction.

The operation is as follows: WVhen the several parts are in the position shown in Fig. l and the bulb H to be exhausted is held in the holder I and is connected by the coupling G with the pipe F, then the valves F and D are opened and mercury or other fluid is poured in the funnel C to flow through the shank C to the closed end of the cylinder into the pipe F and through the tube H inside the bulb H to finally fill the same. The air in the bulb H gradually bubbles out during the filling operation, and after the bulb H and parts leading up to and a little above the valve D are filled with mercury the valve D is closed and the cover E on top. of the funnel O is secured. The operatorv now gives a half-turn to the hand-wheel L, so as to bring the bulb H to the top and the funnel 0 into a lowera most position, as illustrated in Fig. 2. The motive agent is now let into the closed end of the cylinder 0, so as to force the piston 0 outward in the direction of the arrow a, whereby I00 into the cylinder A, thus emptying the bulb H of the mercury, and thereby producing a vacuum therein. hen this has been done, the valve F is closed and the tube H is sealed at its connection with the bulb by melting and closing the tube. The bulb H is now removed from the holder I and a new one is placed in,

position and its tube H coupled by the coupling G to the pipe F, and then the operator returns the hand-wheel L to its previous position, so that the funnel C is again at the top and the bulb H moved into a lowermost position, as indicated in Fig. 1. The piston O is now allowed to return to move the piston A in a like direction, and thereby cause the mercury to again fiow through the pipe F into the new bulb H to fill the same, and the abovedescribed operation is then repeated.

The vacuum-pump described is very simple and durable in construction, is not liable to easily get out of order, and is arranged to produce a complete vacuum in the bulb H or other object to be exhausted.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A vacuum apparatus, comprising a revoluble casing, means in the casing for producing suction therein, a filling device on the casing, a revoluble support for the object to be exhausted, and tubular means for connecting said object with the casing opposite the filling device, as and for the purpose set forth.

2. A vacuum apparatus, comprising a revoluble casing, means in the casing for producing suction therein, a filling device 011 the casing, a support for the object to be exhausted, said support being connected with the casing to turn therewith, and a pipe leading from the casing opposite the filling device and with which the object carried by the support is adapted to be connected, as set forth.

3. A vacuum-pump, comprising a suction device having a revoluble casing, a tubular connection between the casing of the suction device and the object to be exhausted to draw aliquid from the object into said casing,to pro duce a vacuum in said object and a support for the object revoluble with the casing, whereby the said casing and support may be turned to reverse the object, as and for-the purpose set forth.

4. A vacuum-pump comprisingalilling device, a tubular connection for the object to be filled, means for holding the object on said connection and a suction device having a revoluble easing into which open the said filling device and the said tubular connection from opposite sides, to allow of reversing the positions of the said filling device and the tubular connection on rotating the casin g of said suction device, as set forth.

5. A vacuum-pump, comprising a pump having a revoluble cylinder, a valved filling device at one end of the cylinder and in communication therewith, a rigid tubular connection leading from the cylinder in an opposite direction to the said filling device, and means for supporting the object to be exhausted at the end of the said tubular connection so that it will turn with the cylinder, whereby it can be reversed, as set forth.

6. A vacuum pump comprising a pump having a revoluble cylinder, a valved fillingfunnel extending from one end of the cylinder and in communication therewith, a tubular connection leading from the cylinder in an opposite direction to the said funnel and arranged for connection with the object to be exhausted, and a holder for the object to be exhausted, arranged to turn with the said cylinder, as set forth.

7. A vacuum-pump comprising a pump having a revoluble cylinder, a valved fillingfunnel extending from one end of the cylinder and in communication therewith, a tubular connection leading from the cylinder in an opposite direction to the said funnel and arranged for connection with the object to be exhausted, a holder for the object to be exhausted, arranged to turn with the said cylinder, and manually controlled means for turning the said cylinder and the said holder, as set forth.

8. A vacuum-pump comprising a pump having a revoluble cylinder, a reciprocating piston, a valved filling-funnel extending from one end of the cylinder and in communication therewith, a tubular connection leading from the closed end of the cylinder, in an opposite direction to the said funnel, a coupling for connecting the tubular connection with the object to be exhausted, a valve in the said tubular connection, and a revoluble support for the object, as set forth.

9. A vacuum -pump comprising a pump having a revoluble cylinder, into which a fiuid is adapted to be admitted, a reciprocating piston, a tubular connection for the object to be exhausted, said connection leading from one end of the said cylinder and revolving with the same, and a support for the object connected with the cylinder to turn therewith, as set forth.

10. A vacuum-pump comprising a pump h aving a revoluble cylinder, into which a fluid is adapted to be admitted, a reciprocating piston, a tubular connection leading from one end of the said cylinder and revolving with the same, a coupling on the said tubular connection, for connecting the same with the object to be exhausted, and a holder revolving in unison with the cylinder and supporting the object to be exhausted, as set forth.

11. In avacuum-pump, a revoluble casing having means for producing suction therein, a filling device communicating with the cas- IIO ing, a tubular connection leading from the name to this specification in the presence of easing opposite the filling device, and a couptwo subscribing witnesses. V ling on the end of the tubular connection and T by means of which the tube of a bulb may be RLDOLPH STEEB 5 coupled to the said tubular connection, as set itnesses:

forth. THEO. G. HosTER,

In testimony whereof I have signed my EVERAR-D BOLTON MARSHALL. 

